[Android] Use native Share Dialog



Use Native Share Dialog and fallback to Feeds Dialog when it is not available (as recommended by Facebook: https://developers.facebook.com/docs/android/share#linkfeed)

Related to issue: #681
Update ConnectPlugin.java

Clean-up and format code
Support Share dialog in the Browser (and Native)

Facebook Javascript SDK has a bit different signature for dialogs.

Share Dialog: JS SDK Expects href parameter instead of link parameter (See https://developers.facebook.com/docs/javascript/reference/FB.ui)
Update ConnectPlugin.java
Removing unnecessary semicolons

Removed semicolons not needed when defining methods
Merge pull request #684 from josemedaglia/patch-3

[Android] Use native Share Dialog